Ikebukuro Halloween Cosplay Festival 2018

The Ikebukuro Halloween Cosplay Festival is an annual event started in 2014 and is now one of the largest cosplay events in Japan. Ikebukuro is taken over by over 10,000 cosplayers from all over the world and about 90,000 visitors who come watch.

It’s also broadcast live on Niconico Live, garnering the event an additional 240,000 viewers online.